import {Module, ActionContext} from 'vuex';
import { RootState } from '../root-types';
import { PermissionsState } from '/@ts/types/system';
import { basicRoutes } from '/@ts/router/routes';
import Layout from '/@ts/layouts/index.vue'
import ParentView from '/@ts/components/ParentView/index.vue'
import InnerLink from '/@ts/components/InnerLink/index.vue'
import { getRouters } from '/@ts/axios/urlApi/system';
import auth from '/@ts/plugins/auth';
export const permissionsModule:Module<PermissionsState,RootState>={
     //namespaced: true 的方式使其成为带命名空间的模块。
    //保证在变量名一样的时候，添加一个父级名拼接。
    namespaced: true,
    state: ():PermissionsState => ({
        routes: [],
    addRoutes: [],
    defaultRoutes: [],
    topbarRouters: [],
    sidebarRouters: []
      }),
      mutations:{
        SET_ROUTES: (state, routes) => {
            state.addRoutes = routes
            state.routes = basicRoutes.concat(routes)
          },
          SET_DEFAULT_ROUTES: (state, routes) => {
            state.defaultRoutes = basicRoutes.concat(routes)
          },
          SET_TOPBAR_ROUTES: (state, routes) => {
            state.topbarRouters = routes
          },
          SET_SIDEBAR_ROUTERS: (state, routes) => {
            state.sidebarRouters = routes
          },
      },
      actions:{
        GenerateRoutes(context:ActionContext<PermissionsState,RootState>){
            return new Promise(resolve => {
                getRouters()
                .then((res:any)=>{
                    const sdata = JSON.parse(JSON.stringify(res.data))
                    const rdata = JSON.parse(JSON.stringify(res.data))
                    const sidebarRoutes = filterAsyncRouter(sdata)
                    const rewriteRoutes = filterAsyncRouter(rdata, false, true)
                    // const asyncRoutes = filterDynamicRoutes(dynamicRoutes);
                    rewriteRoutes.push({ path: '*', redirect: '/404', hidden: true })
                    // router.addRoutes(asyncRoutes);
                    context.commit('SET_ROUTES', rewriteRoutes)
                    context.commit('SET_SIDEBAR_ROUTERS', basicRoutes.concat(sidebarRoutes) )
                    context.commit('SET_DEFAULT_ROUTES', sidebarRoutes)
                    context.commit('SET_TOPBAR_ROUTES', sidebarRoutes)
                             // 根据roles权限生成可访问的路由表
             
                    resolve(rewriteRoutes)
                })
            })
      } }
}

// 遍历后台传来的路由字符串，转换为组件对象
function filterAsyncRouter(asyncRouterMap:any, lastRouter = false, type = false) {
    return asyncRouterMap.filter((route:any) => {
      if (type && route.children) {
        route.children = filterChildren(route.children)
      }
      if (route.component) {
        // Layout ParentView 组件特殊处理
        if (route.component === 'Layout') {
          route.component = Layout
        } else if (route.component === 'ParentView') {
          route.component = ParentView
        } else if (route.component === 'InnerLink') {
          route.component = InnerLink
        } else {
          route.component = loadView(route.component)
        }
      }
      if (route.children != null && route.children && route.children.length) {
        route.children = filterAsyncRouter(route.children, route, type)
      } else {
        delete route['children']
        delete route['redirect']
      }
      return true
    })
  }
  
  function filterChildren(childrenMap:any, lastRouter?:any) {
    var children:any = []
    childrenMap.forEach((el:any, index:Number) => {
      if (el.children && el.children.length) {
        if (el.component === 'ParentView' && !lastRouter) {
          el.children.forEach((c:any) => {
            c.path = el.path + '/' + c.path
            if (c.children && c.children.length) {
              children = children.concat(filterChildren(c.children, c))
              return
            }
            children.push(c)
          })
          return
        }
      }
      if (lastRouter) {
        el.path = lastRouter.path + '/' + el.path
      }
      children = children.concat(el)
    })
    return children
  }
  
  // 动态路由遍历，验证是否具备权限
  export function filterDynamicRoutes(routes:any) {
    const res:any = []
    routes.forEach((route:any) => {
      if (route.permissions) {
        if (auth.hasPermiOr(route.permissions)) {
          res.push(route)
        }
      } else if (route.roles) {
        if (auth.hasRoleOr(route.roles)) {
          res.push(route)
        }
      }
    })
    return res
  }
  const _import = (path:string) =>import(`../../views/${path}.vue`)
  const views = import.meta.globEager('../../views/**/**/*.vue')
  const routerMap:any = {}
  for (const key in views) {
    if (Object.prototype.hasOwnProperty.call(views, key)) {
      const element = views[key];
      const routerPath = key.replace('../../views/','').replace('.vue','')
      routerMap[routerPath] = element.default
    }
  }
  export const loadView = (view:any) => {
    if (import.meta.env.VITE_NODE_ENV === 'development') {
      return _import(view)
    } else {
      return  routerMap[view]
    }
  }
  